SMA SB 4200TL Multi-String - Manual (Page 44)

Technical Documentation SMA Technologie AG
Page 44 SB4200-12:FE4804 Operating Instructions
6.4 Measurement Channels and Messages
If your Sunny Boy 4200TL Multi-String has been equipped with a communication in-
terface, numerous measurement channels and messages can be acquired. These can
help improve the performance as well as eliminate failures of your plant.
BFR: System control
SRR: Current control
6.4.1 Measurement Channels
Channel Description
dI Residual currents between the modules and the Sunny Boy
E-Total Total power fed to the grid accumulated from the day of instal-
lation
E-Total DC-A Total DC Yield, String A
E-Total DC-B Total DC Yield, String B
Fac Grid frequency
Fehler/Failure Display of failure type in „Failure“ state
Fehler-Cnt/Error-
Cnt Total number of errors
h-On Total sum of operating hours
h-Total Total sum of operating hours in feeding operation
h-Total DC-A Total sum of operating hours in feeding operation, String A
h-Total DC-B Total sum of operating hours in feeding operation, String B
Iac Current fed to the grid
Netz-Ein/Power
ON Total number of connections to the grid
Pac Present output power
Riso Insulation resistance of PV plant before the connection to the
grid
Seriennummer/
Serial Number Serial number of the Sunny Boy
Status/Mode Display of current operating state
Uac/Vac Grid voltage
Upv-Ist DC-A/
Vpv DC-A PV input voltage (string A)
Upv-Ist DC-B/
Vpv DC-B PV input voltage (string B)